<!DOCTYPE html>
<html>
<head>
    <!--<meta http-equiv="Content-Type" content="text/html; charset=utf-8"/>-->
    <!--<meta name="viewport" content="width=device-width, initial-scale=1.0">-->
    <title>转盘抽奖</title>
    <!--#include("common/common-link.html"){}-->


    <link href="https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/css/wheel_style.css" rel="stylesheet"
          type="text/css">
    <link href="${ctx}/assets/css/pay-common.css" rel="stylesheet">

    <script type="text/javascript"
            src="https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/js/awardRotate.js"></script>
    <script type="text/javascript" src="//cpro.baidustatic.com/cpro/ui/cm.js" async="async" defer="defer"></script>

    <style>
        .wheel-warp {
            background: #96CDCD;
            overflow-x: hidden;
        }

        .wheel-warp .title {
            margin-top: 10px;
            margin-left: 10px;
            margin-right: 10px;
        }

        .wheel-warp .title .text-normal {
            font-size: 18px;
            color: #6B6B6B;
        }

        .wheel-warp .title .text-red {
            font-size: 22px;
            color: #FF4040;
        }

        .wheel-warp .title .more {
            font-size: 18px;
            color: #FF4040;
            float: right
        }

        .wheel-warp .wheel-ad-notice {
            font-size: 18px;
            color: #fb3e5e;;
        }
    </style>

</head>
<body class="wheel-warp" onload="onViewLoad()">
<div id="warp">
    <div class="title">
        <span class="text-normal">您当前有</span>
        <span class="text-red">{{enableTimes}}</span>
        <span class="text-normal ">次抽奖机会</span>

        <a href="#" class="more" onclick="get_more_chance()">获取更多</a>
    </div>

    <div>
        <img src="https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/images/bg/wheel_image_1.png" id="shan-img"
             style="display:none;"/>
        <img src="https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/images/bg/wheel_image_2.png" id="sorry-img"
             style="display:none;"/>
        <div class="banner">
            <div class="turnplate"
                 style="background-image:url(https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/images/bg/turnplate-bg.png);background-size:100% 100%;margin-top:30%;">
                <canvas class="item" id="wheelcanvas" width="422px" height="422px"></canvas>
                <img class="pointer" onclick="pointerClick()"
                     src="https://yanlight-trade.oss-cn-zhangjiakou.aliyuncs.com/images/bg/turnplate-pointer.png"/>
            </div>
        </div>
    </div>

    <div style="margin-top: 100px;text-align: center;margin-bottom: 10px">
        <span class="wheel-ad-notice">看广告，抽大奖~</span>
    </div>
</div>


<script type="text/javascript">

    var app = new Vue({
        el: '#warp',
        data: {
            enableTimes: 0,
            authId: '${authId}',
            type: '${type}',
            codeValue: '${codeValue}',
            companyId: '${companyId}',
        },
    })


    var turnplate = {
        restaraunts: [],				//大转盘奖品名称
        colors: [],					//大转盘奖品区块对应背景颜色
        outsideRadius: 192,			//大转盘外圆的半径
        textRadius: 155,				//大转盘奖品位置距离圆心的距离
        insideRadius: 68,			//大转盘内圆的半径
        startAngle: 0,				//开始角度
        bRotate: false				//false:停止;ture:旋转
    };

    function initWheel() {
        drawRouletteWheel();
    }

    function rotateFn(item, txt) {
        var angles = item * (360 / turnplate.restaraunts.length) - (360 / (turnplate.restaraunts.length * 2));
        if (angles < 270) {
            angles = 270 - angles;
        } else {
            angles = 360 - angles + 270;
        }
        $('#wheelcanvas').stopRotate();
        $('#wheelcanvas').rotate({
            angle: 0,
            animateTo: angles + 1800,
            duration: 8000,
            callback: function () {
                alert(txt)
                turnplate.bRotate = !turnplate.bRotate;
            }
        });
    }

    //获取更多机会
    function get_more_chance() {
        var alert = layer.alert('观看广告获取更多抽奖次数（每天最多3次）', {
            skin: 'layui-layer-lan',
            title: '提示',
            closeBtn: 0
        }, function () {
            layer.close(alert)
        });
    }


    function drawRouletteWheel() {
        var canvas = document.getElementById("wheelcanvas");
        if (canvas.getContext) {
            //根据奖品个数计算圆周角度
            var arc = Math.PI / (turnplate.restaraunts.length / 2);
            var ctx = canvas.getContext("2d");
            //在给定矩形内清空一个矩形
            ctx.clearRect(0, 0, 422, 422);
            //strokeStyle 属性设置或返回用于笔触的颜色、渐变或模式
            ctx.strokeStyle = "#FFBE04";
            //font 属性设置或返回画布上文本内容的当前字体属性
            ctx.font = '16px Microsoft YaHei';
            for (var i = 0; i < turnplate.restaraunts.length; i++) {
                var angle = turnplate.startAngle + i * arc;
                ctx.fillStyle = turnplate.colors[i];
                ctx.beginPath();
                //arc(x,y,r,起始角,结束角,绘制方向) 方法创建弧/曲线（用于创建圆或部分圆）
                ctx.arc(211, 211, turnplate.outsideRadius, angle, angle + arc, false);
                ctx.arc(211, 211, turnplate.insideRadius, angle + arc, angle, true);
                ctx.stroke();
                ctx.fill();
                //锁画布(为了保存之前的画布状态)
                ctx.save();

                //----绘制奖品开始----
                ctx.fillStyle = "#E5302F";
                var text = turnplate.restaraunts[i];
                var line_height = 17;
                //translate方法重新映射画布上的 (0,0) 位置
                ctx.translate(211 + Math.cos(angle + arc / 2) * turnplate.textRadius, 211 + Math.sin(angle + arc / 2) * turnplate.textRadius);

                //rotate方法旋转当前的绘图
                ctx.rotate(angle + arc / 2 + Math.PI / 2);

                /** 下面代码根据奖品类型、奖品名称长度渲染不同效果，如字体、颜色、图片效果。(具体根据实际情况改变) **/
                if (text.indexOf("M") > 0) {//流量包
                    var texts = text.split("M");
                    for (var j = 0; j < texts.length; j++) {
                        ctx.font = j == 0 ? 'bold 20px Microsoft YaHei' : '16px Microsoft YaHei';
                        if (j == 0) {
                            ctx.fillText(texts[j] + "M", -ctx.measureText(texts[j] + "M").width / 2, j * line_height);
                        } else {
                            ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                        }
                    }
                } else if (text.indexOf("M") == -1 && text.length > 6) {//奖品名称长度超过一定范围
                    text = text.substring(0, 6) + "||" + text.substring(6);
                    var texts = text.split("||");
                    for (var j = 0; j < texts.length; j++) {
                        ctx.fillText(texts[j], -ctx.measureText(texts[j]).width / 2, j * line_height);
                    }
                } else {
                    //在画布上绘制填色的文本。文本的默认颜色是黑色
                    //measureText()方法返回包含一个对象，该对象包含以像素计的指定字体宽度
                    ctx.fillText(text, -ctx.measureText(text).width / 2, 0);
                }

                //添加对应图标
                if (text.indexOf("现金") > 0 || text.indexOf("红包") > 0) {
                    var img = document.getElementById("shan-img");
                    img.onload = function () {
                        ctx.drawImage(img, -15, 10);
                    };
                    ctx.drawImage(img, -15, 10);
                } else if (text.indexOf("谢谢参与") >= 0) {
                    var img = document.getElementById("sorry-img");
                    img.onload = function () {
                        ctx.drawImage(img, -15, 10);
                    };
                    ctx.drawImage(img, -15, 10);
                }
                //把当前画布返回（调整）到上一个save()状态之前
                ctx.restore();
                //----绘制奖品结束----
            }
        }
    }


    //获取奖品列表
    var common_request_award_list = function (callback) {
        var url = get_common_host_name() + "ad/awardList"
        $.ajax({
            url: url,
            type: 'POST',
            contentType: "application/x-www-form-urlencoded;charset=UTF-8",
            dataType: "json",
            success: function (result) {
                if (result.errorCode == 0) {
                    callback(true, result)
                } else {
                    callback(false, "")
                }
            },
            error: function (error) {
                callback(false, error)
            }
        });
    }

    var common_request_award_result = function (callback) {
        var url = get_common_host_name() + "ad/awardResult"
        $.ajax({
            url: url,
            type: 'POST',
            contentType: "application/x-www-form-urlencoded;charset=UTF-8",
            data: {
                authId: app.authId,
                type: app.type
            },
            dataType: "json",
            success: function (result) {
                if (result.errorCode == 0) {
                    callback(true, result)
                } else {
                    callback(false, "")
                }
            },
            error: function (error) {
                callback(false, error)
            }
        });
    }

    var request_enable_times = function () {
        var url = get_common_host_name() + "ad/enableTimes"
        $.ajax({
            url: url,
            type: 'POST',
            contentType: "application/x-www-form-urlencoded;charset=UTF-8",
            data: {
                authId: app.authId
            },
            dataType: "json",
            success: function (result) {

                if (result.errorCode == 0) {
                    app.enableTimes = result.data
                } else {
                    app.enableTimes = 0
                }
            },
            error: function (error) {
                app.enableTimes = 0
            }
        });
    }


    function pointerClick() {

        if (app.enableTimes > 0) {
            if (turnplate.bRotate) return;
            turnplate.bRotate = !turnplate.bRotate;

            common_show_loading()

            common_request_award_result(function (status, result) {
                common_dismiss_loading()
                if (!status) {
                    alert("抽奖信息获取失败")
                    turnplate.bRotate = !turnplate.bRotate;
                } else {
                    app.enableTimes--
                    var item = result.data + 1
                    //奖品数量等于10,指针落在对应奖品区域的中心角度[252, 216, 180, 144, 108, 72, 36, 360, 324, 288]
                    rotateFn(item, turnplate.restaraunts[item - 1]);
                }
            })
        } else {
            turnplate.bRotate = !turnplate.bRotate;
            common_toast("您还未获取抽奖次数")
        }
    }

    function onViewLoad() {

    }

    common_request_award_list(function (status, result) {
        if (status) {
            var awardList = result.data

            var nameArray = Array(awardList.length)
            var colorArray = Array(awardList.length)

            for (var i = 0; i < awardList.length; i++) {
                nameArray[i] = awardList[i].name
                colorArray[i] = awardList[i].color
            }

            turnplate.restaraunts = nameArray
            turnplate.colors = colorArray

            initWheel()
        } else {
            alert("转盘数据获取失败")
        }
    })

    layer.ready(function () {

    })

    common_init_pay(app.type, app.authId, app.companyId, app.codeValue)
    common_init_ad(true)
    request_enable_times()

</script>

</body>
</html>